dridex | 0c5c0aa62424b9f660bbbe7d6f5bf75ccd92876fff9cfd006f2ffcf8a7b141dd

Analysis

max time kernel
148s
max time network
151s
platform
windows10_x64
resource
win10
submitted
27-10-2020 15:00

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General

Target

Fmdlmggi.dll
Size

818KB
MD5

e20634b13d1713b41d52313702e7fef3
SHA1

bc126efa30a16b2e0dc3fea4988260d2a3cbb880
SHA256

0c5c0aa62424b9f660bbbe7d6f5bf75ccd92876fff9cfd006f2ffcf8a7b141dd
SHA512

e8da1da8b65cfff5b124ec8ed692c2e4950e178a3bc80e10b403c40cdf182b2270cd6beedf5441af760086c3172f6a95b92ade29b9f0d28598622771aaafc9d1

Score

10^/10

dridex 10555 botnet discovery evasion loader trojan

Malware Config

Extracted

Family

dridex

Botnet

10555

85.207.13.169:443

74.207.242.13:1688

176.58.101.200:49160

164.132.75.129:3388

rc4.plain

Signatures

Dridex
Dridex(known as Bugat/Cridex) is a form of malware that specializes in stealing bank credentials.
botnet dridex

Dridex Loader 1 IoCs

Detects Dridex both x86 and x64 loader in memory.

botnet loader

Processes:

resource	yara_rule
behavioral2/memory/3084-1-0x0000000004800000-0x000000000483D000-memory.dmp	dridex_ldr

Blocklisted process makes network request 1 IoCs

Processes:

rundll32.exe

flow pid process

15 3084 rundll32.exe
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

rundll32.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA rundll32.exe

flow	pid	process
15	3084	rundll32.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	process	target process
PID 3916 wrote to memory of 3084	3916	rundll32.exe	rundll32.exe
PID 3916 wrote to memory of 3084	3916	rundll32.exe	rundll32.exe
PID 3916 wrote to memory of 3084	3916	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\Fmdlmggi.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3916

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\Fmdlmggi.dll,#1
2⤵
- Blocklisted process makes network request
- Checks whether UAC is enabled
PID:3084

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3084-0-0x0000000000000000-mapping.dmp

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memory/3084-1-0x0000000004800000-0x000000000483D000-memory.dmp

Filesize
244KB

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